2 results listed
A rock fall is defined as the process of separation of rock blokes from the bedrock and movement of these blokes due to physical or chemical reasons which will reach the lower elevations with high speed and energy. The event of rock fall is categorized as a type of natural disaster. When it occurs, it not only has destructive effects but can also cause loss of life and goods. In this study, initially the general concepts and widely used rock fall protection systems were described. Later on, the constructed rockfall protection systems, which are at the midst of their service life and are located in Trabzon province have been evaluated. At the end of the study, it was established that if the rockfall protection system is selected appropriately and built in the right place, it can easily provide the planned service. In addition, not only the existing risks but also some other possible risks should be considered during the project design and selection of rockfall protection system.
International Science and Engineering Application Symposium on Hazards
ISESH
Mohammad Manzoor Nasery
Muhammet ÇELİK
Ercan Osmanoğlu
Mustafa TOPÇUOĞLU
In this study, the mesh size effects on finite element modeling of steel beams under impact loadings were taken into consideration. Primarily, a steel beam with rectangular hollow section was exposed to impact loading on weak axis direction of the beam. Secondly, the threedimensional finite element models of steel beams were developed by using Abaqus package program. In finite element modeling the impact load, material properties, and boundary conditions were defined as experimental study. In numerical study six finite element models have been developed with different mesh size. Displacement-time curve and plastic deformations which were obtained from experimental study were comparatively examined with the same results of different mesh size of the finite element models. Towards end of the study, it was revealed that the numerical results have directly affected by the mesh size of the finite element models.
International Science and Engineering Application Symposium on Hazards
ISESH
Mohammad Manzoor Nasery
Elif Ağcakoca
Zeynep Yaman